The most biochemically complex organisms are ________.

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#Question id: 31234

#Unit 2. Cellular Organization

Failure of which surveillance mechanism is most likely to result in non-dysjunction of chromosomes?

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#Question id: 23883

#Unit 13. Methods in Biology

A paleontologist has recovered a bit of tissue from the 400-year-old preserved skin of an extinct dodo (a bird). The researcher would like to compare a specific region of the DNA from the sample with DNA from living birds. Which of the following would be most useful for increasing the amount of dodo DNA available for testing?

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#Question id: 1519

#Unit 4. Cell Communication and Cell Signaling

Following statements are regarding to the FOXO3a protein.

A. In the presence of growth factors, FOXO3a is non phosphorylated and mainly localizes to the nucleus, where it activates transcription of several genes encoding pro-apoptotic proteins.

B. When growth factors are removed from the cells, PKB becomes active and phosphorylates FOXO3a.

C. Phosphorylated FOXO3a binds to cytosolic phosphoserine-binding protein 14-3-3 to bind FOXO3a and thus sequester it in the cytosol.

D. Dephosphorylated FOXO3a binds to cytosolic phosphoserine-binding protein 14-3-3 to bind FOXO3a and thus sequester it in the cytosol.

Which of the following is correct?

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#Question id: 27966

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following acts in the nucleus to regulate the transcription of genes that respond to thyroid hormone.

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#Question id: 29501

#Unit 6. System Physiology – Plant

Cryptochromes under blue light causes

a. Promotion of cotyledon expansion

b. Membrane depolarization

c. Circadian clock entrainment

d. Inhibition of petiole elongation

Which of the following is correct